Closed Cell Spray Foam R Value Chart

If you want to install spray foam in a stud wall and price is no object then it would seem to make sense to specify closed cell spray foam right.

Closed cell spray foam r value chart.

Closed cell spray foams are between 2 and 4 lbs. It has a lower r value per inch than closed cell foam and is vapor permeable. Closed cell spray foam insulation is vapor and air impermeable and is applied with a minimum of 2 on average with use on on interior and exterior building applications. Closed cell spray foam insulation.

Open cell spray foam has an r value of about r 3 7 per inch while closed cell spray foam has an r value that may be as high as r 6 5 per inch. If you want to install spray foam in a stud wall and price is no object then it would seem to make sense to specify closed cell spray foam right. Two inches of closed cell foam will provide r12 r14 of insulation. The r value for closed cell is typically around 6 7 at 1 thick and varies by.

Closed cell spray foam r values. Open cell spray foam has an r value of about r 3 7 per inch while closed cell spray foam has an r value that may be as high as r 6 5 per inch. For example closed cell spray foam depending on brand can offer an r 6 or r 7 per inch. Closed cell spray foam has a far better r value per inch than other less effective insulations like cellulose fiberglass or even open cell foam.

The r value is r 3 5 to r 3 6 per inch so filling a 2 4 cavity yields about an r 13. For 6 inches r 15 or r 19 etc. They sport an r value of 6 0 8 0 per inch of insulation about double their open cell foam counterparts. The r value for open cell is typically around 3 7 at 1 thick and varies by manufacture.